In a lid opening and closing device for a vehicle, a restriction member restricting movement of a rod and an electric motor driving the restriction member are housed in a case fixed to a vehicle body outer plate. An emergency operation member extends movably through a vehicle body inner plate while enabling the restriction member to move when the electric motor malfunctions, the emergency operation member being resiliently urged toward an initial position side at least when being operated. A grommet for preventing intrusion of water is provided between the emergency operation member and the vehicle body inner plate. The grommet includes a grommet main portion liquid-tightly mounted on the vehicle body inner plate while having the emergency operation member movably inserted therethrough, and an elastic portion integrally connected to the grommet main portion while enabling the emergency operation member to be resiliently urged toward the initial position side.